Means for converting motion.



No. 847,945. PATENTED MAR. 19,? 1907. G. W. ILETT. MEANS FOR GONVERTING MOTION.

APPLICATION FILED DBO. 26,1905;

GEORGE W. ILET'iyoronIoAeo, ILLINOIS.-

" MEIAN$ re n eosvsnrsne reorient.

Specification of Letters Patent. 4 Application filed December 26. 1905 Serial Nu.;293,321.

. Patented search-1e; 199?.

To all whom it may concern:

Be it known that I, Gnonen W. ILETT, a

citizen of the United States, residing at Chiand show inlike sectional views, in different positions, a means for effecting such conversion-of motion, and my invention may most cleanly-be describedin relation thereto.

' In the drawing, 5'indicates a. reciprocator, shown as a rod, towhich steadyreciprocating motion is imparted by any. suitable engine br power enerator, and from the movements whereo it is desired to transmit to a coacting part rapid impulsive. reciprocatory movement.

6 indicates a cylinder of air -tight construction, having therein two ports 7 and 8, suitably disposed for purposes to be hereafter.

described, and wherein is arranged for reciprocation a piston 9, to which the rod 5 is connected said iston dividing the cylinder 6 into two 'fiui -chambers. Through the pis ton 9 extend two conduits 10 and 11, respectively, located for cooperation with the ports 7 and 8, respectively. The piston len -thand arran ement of conduit is such t at when the piston 9 is at or near the end of its instroke it effects communication between port 7- andthe clearance-space 12 between the end of the piston and the inner end of the cylinder, while the piston opens port 8 direct to the outer chamber of the cylinder, as best shown in Fi 1, and when the piston is at or near the on of its out stroke the conduit 11 effects communication between port 8 and the clearance 13, intervening between the outer cylinder-head and the outer end of the piston, while the piston clears port 7, so that said port communicatesdirectly with the innor chamber. Those parts-thc cylinder, pistion, and piston-moving mcansconstitutc a uid-prclssuro-varyir1g u nit.

15 indicates the clement to which impulsive movements are to be transmitted, said element being preferably a piston-rod extending through the head of a cylinder 16, preferably opposed to the cylinder '6 and pro-- vided with ports 17 and 18, respectively, located in the clearance-spaces adjacent the inner and outer endsof the cylinder 16. For convenience the cylinders'16 and 6 may be arranged .i'naxia'l alinement and made as one the interposition of a common cylinder-head 6 between parts 6 andlfi, elthough obviously no particular collocation of the cylin ders is essential.

19 indicates a piston connected to the en tremity of the rod -15 a nd:. preferably made solid throughout. The piston is of such len th and stroke as to leave at its inner end a c earance spaee 22, wherewith the port-17 communicates, and at its outer extremity a clearance-space 23, wherewith theport 18 I communicates.

piston, and element 15) constitute a fiuidpressure-utilizing unit} Connections between the two units are aficrded. as follows: 24 'inand 17, and 25 indicates a conduit connecting ports;8 and 18.

The entire structure thus described should be; air-tight for the simplest embodiment of my invention, and air may he the compressi ble fluid employed therewith. Assuming now that power is applied to the power-trans mitting element 5 to reci rocete the same in even steady fashion a ter the manner of reciprocation transmitted through the running engine, the relatively slow recipro cation of the piston 9 is converted into quick impulsive strokes of piston 19 equal in number to, but rev edin direction rela-- tive to, the in and out strokes of the steadilymoving transmitting element, the operatioiii being as follows:

Assumin the parts to he in the position shown in F1 1, with the piston 9 at the end of its instro c, it will be apparent that as the rod 5 and piston 9 move outward the initial movement of the piston closes th ports 7 and 8, so that thereafter air is compressed in the outer chamber of the cylinder 6 By the piston 9 and a vacuum tendency is created in theinner chamber by the piston until the piston reaches the position shown in Fig. 2, where it opens .the ports 7 and 8, the former opening mtp the then vacuumchambcrof the cylinder and the latter into the then pressure-chamber of the cylinder. Now it will be apparent that air rushing from the integral cylinder, subsequently divided by' These parts (the cylinder, 1

ordinary connecting-rod from a. smooth.-

dicates an open conduit connecting ports 7 impulsive stroke.

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cylinder 6 through port 8, the conduit 25, and port 18 to the clearancespace '23 at the outer side of the impulsapiston ll), the air likewise rushing from the inner end of the cylinder 16 through port li, conduit 24,'and port 7 to satisfy the vacuum tendency in the vacuumcharnb'er cnd'ot cylinder 6, said pressure.- piston 19 is caused thereby to make a quick Now upon reversaloi direction of movement of the piston 9 the op oration is reversed, orts Z and 8 bein closed and air, com resse at the inner'en of the cylinder 6 ,w 'le a vacuum tendency-is created at the-outer end otsaid-cylinder. Now when the piston 9 reaches the position shown in Fig. 1, (the piston 19. having in the interim. remained in the position Sh0\'11 Fig.2) the ports 7 and 8 being respectively open to the pressure and vacuum chambers of cylinder 6, air is forced nder pressure into cleziraneeepace 22 and exhausted from the outer end of the cylinder 16 so that a,second. impulse movement is imparted-to the iston -19 of the pressure-operated unit. t the completion of thisirnpulse motion the parts are again in the osition shown-in Fig.v 1

ready for a repetition of the cycle of operae eworking part extending 'tion just described. I I v WVhile I have not herein shown the applica Anion of my invention to any particular use, it will be obvious that its applications are many and varied and, by way 0t example merel that the device mightbe employedl or reclidrills, automatic hammers, and the like.

While I have herein described specifically one embodiment of my invention, it will be apparent that changes might be in'ade' in its mechanical features Without departure from the spirit thereof. I

Having thus described my invention, what l. claim, and desire to secure by Letters Patentof the United States, is I, 1. in a device of the character described,

the combination of a pressure-varying unit comprising a cylinder having compression spaces," and a plurality of ports, a correspondi'ngly-p-orted piston therein controlling" the communication of the cylinder-ports with the compression-spaces,

unit,- coniprismg a cylinder havingports, a. plston the-rem, and a part extending to the the and means for'rnov' 'mg said piston; of a fluld-pressure -utilizing exterior-of the cylinder associated with the pis ten for movement therewith; and suitable connections for transmitting ilunl-pressurc,

,connectinQ the ports of the cylinders of the two said units. i

2. in a device ot'the character described, a cylinder, a piston therein, means for reciprocating said iston, a second cylinder, apiston therein, an valveless passages for communi cation between the two said cylinders,controlled directly by the piston in the first said cylinder. a

V 3. In a device of the character described, two' cylinders ,.each h aving two )OItS therein, two open connections, each l)8b\\"(301\ two ports, which are respectively on o iposite provided communication between one port and the portion of the *lmder on one side oi the p1stion of the cylinder on the opposite side ol the piston, means for moving said piston, in the other cylinder a ston arrangedv for rcciprw cation-.betyveen-t e ports of said cylinder, and

the last "said cylinder connected with the piston for movement therewith..- i i I 4. in a device of the character described, a cylinder 6 rovided. with ports .7 and 2%, a piston in sai cylinder, provided with conduits 10 and 11 opening to opposite ends oi the with one of the said ports 7 and 8, one when the piston is at one end of its stroke and. the other'When thepiston is at the otherend of its strol e,a piston-rod 5 connected with the piston 9; a cylinder 16' having adjacent its ends ports 17 ,and 18, a solid piston 1.9 an- Ioylinders, a piston in one of said cy inderswith conduits arrangcd,\vhen said. piston is. at either end of its stroke to open ton and between the other port and the porpiston, and arranged each to communicate 3 to the exterior of ranged 'tlzierem; a piston-rod; 1-5 connected therewith, and connections 2 and establishing communication between the 50W of ports, 'Whereof the ports of each-pair are in opposite-cylinders.

In testimony wi'iereof I hereunto set my hand in the presence of two witnesses.

, GEORGE 'W. lLET'l. In presenoe'ofa Fom'ln'BAm, 'lvLxnr. F. ALLEN.

0 pairs 

